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Evaluation The Efficiency of a Suggested Model in Emulation The Behavior of R.C. Beams Strengthened with GFRP Strips

تقييم فعالية موديل مقترح لمحاكاة سلوك جيزان بيتونية مسلحة مدعمة على القص بشرائح GFRP

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 Publication date 2015
and research's language is العربية
 Created by Shamra Editor




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Our Paper is a laboratory modeling research to evaluate the efficiency of finite element model in emulation the behavior of R.C. beams with shear deficiencies (ultimate load, mechanism of cracking and failure, load-deflection behavior) strengthened with GFRP strips. We tested nine R.C. beams 200x30x16 cm in three groups, the first consists of three R.C.beams for comparing, the second consists of three strengthened R.C. beams with two sides vertical GFRP strips, and the third also consists of three strengthened R.C. beams with two sides inclined (45°) GFRP strips. We modeled these beams by advanced finite element program Ansys10, and we get results agreed with our laboratory study.


Artificial intelligence review:
Research summary
يتناول البحث دراسة تجريبية تحليلية تهدف إلى تقييم فعالية نموذج من العناصر المنتهية لمحاكاة سلوك الجيزان البيتونية المسلحة المدعمة بشرائح GFRP. تم اختبار تسعة جيزان بيتونية مسلحة بأبعاد 200x30x16 سم، مقسمة إلى ثلاث مجموعات: الأولى معيارية، الثانية مدعمة بشرائح شاقولية من GFRP، والثالثة مدعمة بشرائح مائلة بزاوية 45 درجة. استخدم الباحث برنامج ANSYS10 لنمذجة هذه الجيزان ومقارنة النتائج مع التجارب المخبرية. أظهرت النتائج توافقاً جيداً بين النموذج المقترح والنتائج التجريبية، مما يثبت فعالية النموذج في محاكاة سلوك الجيزان المختبرة. كما تم تحليل منحنيات حمولة-سهم وآلية التشقق والانهيار لهذه الجيزان.
Critical review
دراسة نقدية: على الرغم من أن البحث قدم نموذجاً فعالاً لمحاكاة سلوك الجيزان البيتونية المسلحة المدعمة بشرائح GFRP، إلا أن هناك بعض النقاط التي يمكن تحسينها. أولاً، كان من الأفضل تضمين تحليل أكثر تفصيلاً للمتغيرات المؤثرة على دقة النموذج مثل تأثيرات الرطوبة ودرجة الحرارة. ثانياً، يمكن توسيع نطاق الدراسة ليشمل أنواعاً أخرى من التدعيمات والمواد لتحسين شمولية النتائج. وأخيراً، كان من الممكن تقديم توصيات أكثر تحديداً لتطبيقات النموذج في المشاريع الهندسية الواقعية.
Questions related to the research
  1. ما هو الهدف الرئيسي من البحث؟

    الهدف الرئيسي هو تقييم فعالية نموذج من العناصر المنتهية لمحاكاة سلوك الجيزان البيتونية المسلحة المدعمة بشرائح GFRP.

  2. ما هي المجموعات الثلاث التي تم اختبارها في الدراسة؟

    المجموعة الأولى معيارية، الثانية مدعمة بشرائح شاقولية من GFRP، والثالثة مدعمة بشرائح مائلة بزاوية 45 درجة.

  3. ما هو البرنامج المستخدم لنمذجة الجيزان في الدراسة؟

    تم استخدام برنامج ANSYS10 لنمذجة الجيزان.

  4. ما هي النتائج الرئيسية التي توصلت إليها الدراسة؟

    أظهرت النتائج توافقاً جيداً بين النموذج المقترح والنتائج التجريبية، مما يثبت فعالية النموذج في محاكاة سلوك الجيزان المختبرة.


References used
ACI 440, American Concrete Institute, "State of the Art Report of fiber reinforced plastics (FRP) reinforcement for concrete structures", American Concrete Institute, Farmington, Michigan, 2002
ACI 546, American Concrete Institute, "Concrete Repair Guide", American Concrete Institute, Farmington Hills, Michigan, 2001
ANSYS, "ANSYS Users Manual Revision 10", ANSYS Inc., Canonsburg, Pennsylvania, 2005
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